package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/** 预编译SQL语句
 *
 */
public class JDBCDemo7 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"用户登录","登录");

        try(
            Connection connection = DBUtil.getConnection();
        ) {
            String sql = "SELECT id,username,password,nickname,age " +
                         "FROM userinfo " +
                         "WHERE username=? AND password=?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());
            ps.setString(2,userInfo.getPassword());
            ResultSet rs = ps.executeQuery();
            if(rs.next()){
                System.out.println("登录成功");
            }else{
                System.out.println("登录失败");
            }







        } catch (SQLException e) {
            e.printStackTrace();
        }


    }
}
